game: add enemy mods

scenes/enemies/enemy.gd

@@ -9,9 +9,9 @@ extends CharacterBody2D
 @onready var contact_damage_cd: Timer = $ContactDamageCD
 @onready var animation_player: AnimationPlayer = $AnimationPlayer
 
-var move_speed: float
-var health: float
-var max_health: float
+var move_speed: float = default_move_speed
+var health: float = default_max_health
+var max_health: float = default_max_health
 var god_mode: bool = false
 var is_dead: bool = false